Nodejs-storage: ReferenceError: Invalid left-hand side in assignment

[cstrd]

I am getting error when I import @google-cloud/storage in nodejs,

I have tried importing using:

const gcs = require('@google-cloud/storage');

`/home/devteam11/TRD/new-rest-api/node_modules/pify/index.js:3
const processFn = (fn, opts) =
^^^^^^^^^^

ReferenceError: Invalid left-hand side in assignment
at Module._compile (internal/modules/cjs/loader.js:720:23)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:787:10)
at Module.load (internal/modules/cjs/loader.js:643:32)
at Function.Module._load (internal/modules/cjs/loader.js:556:12)
at Module.require (internal/modules/cjs/loader.js:683:19)
at require (internal/modules/cjs/helpers.js:16:16)
at Object. (/home/devteam11/TRD/new-rest-api/node_modules/make-dir/index.js:4:14)
at Module._compile (internal/modules/cjs/loader.js:776:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:787:10)
at Module.load (internal/modules/cjs/loader.js:643:32)
at Function.Module._load (internal/modules/cjs/loader.js:556:12)
at Module.require (internal/modules/cjs/loader.js:683:19)
at require (internal/modules/cjs/helpers.js:16:16)
at Object. (/home/devteam11/TRD/new-rest-api/node_modules/configstore/index.js:5:17)
at Module._compile (internal/modules/cjs/loader.js:776:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:787:10)
`

Environment details
OS: Ubuntu 18.04
Node.js version: v10.16.0
npm version: 6.9.2
@google-cloud/storage version: 2.5.0
Steps to reproduce
package.json contains: "@google-cloud/storage": "2.5.0",

Thanks!

[AVaksman]

@cstrd for "@google-cloud/storage": "2.5.0"
the syntax should be

const {Storage} = require('@google-cloud/storage');
const storage = new Storage();

If you still experience a problem, please refer to this answer.

[JustinBeckwith]

Sorry to see you having trouble here again. Something is likely wrong with your installation or global env. Can you take this code, plop it in a file, and run it? In the same directory as the code you're trying? Then share the output?

console.log(process.version);
var gcs = require('@google-cloud/storage');
var cache = require.cache;
for (var prop in cache) {
  if (prop.indexOf('@google-cloud/storage/build/src/index.js') > 0) {
    console.log(cache[prop]);
  }
}

const pkg = require('./node_modules/@google-cloud/storage/package.json');
console.log(pkg.version);

[alexander-fenster]

It feels like the problem is somehow coming from make_dir module and the line it finally fails at is

node_modules/make_dir/index.js

const {promisify} = require('util');

What does node --version say, can you please copy and paste here?

[cstrd]

@JustinBeckwith
Here is the output:

v8.6.0
/home/devteam11/TRD/new-rest-api/node_modules/pify/index.js:3
const processFn = (fn, opts) =
^^^^^^^^^^

ReferenceError: Invalid left-hand side in assignment
at createScript (vm.js:80:10)
at Object.runInThisContext (vm.js:139:10)
at Module._compile (module.js:588:28)
at Object.Module._extensions..js (module.js:635:10)
at Module.load (module.js:545:32)
at tryModuleLoad (module.js:508:12)
at Function.Module._load (module.js:500:3)
at Module.require (module.js:568:17)
at require (internal/module.js:11:18)
at Object. (/home/devteam11/TRD/new-rest-api/node_modules/make-dir/index.js:4:14)

[cstrd]

@alexander-fenster v8.6.0

[JustinBeckwith]

Ok next thing 😆 Can you rm -rf node_modules package-lock.json and then npm install again?

[JustinBeckwith]

Yeah - your node_modules are corrupt :) Here's the problem. Your stack trace has this:

/home/devteam11/TRD/new-rest-api/node_modules/pify/index.js:3
const processFn = (fn, opts) =

That line is supposed to read:

const processFn = (fn, options) => function (...args) {

That means something went catawampus for you during npm install. The tip above should fix this.

[cstrd]

@JustinBeckwith Thanks a lot! It got fixed...